WO2025127394A1 - Dishwasher - Google Patents

Abstract

This dishwasher may comprise: a tub forming a washing chamber; a first duct positioned on a first side of the tub according to a first direction and having a first communication hole through which air flows into the tub; a second duct positioned on the first side of the tub according to the first direction in a second direction different from the first direction and having a second communication hole through which air flows into the tub; and a thermoelectric device positioned on the first side of the tub according to the first direction, and including a heating unit disposed in the first duct and a cooling unit disposed in the second duct in the second direction with respect to the heating unit.

Description

Dishwasher

The present disclosure relates to a dishwasher.

A dishwasher is a device that automatically washes food scraps and other debris from dishes using detergent and water.

A dishwasher may include a tub forming a washing space, a sump collecting wash water in the tub, a pump pumping wash water in the sump, and a spray device spraying the pumped wash water into the tub.

A dishwasher can perform a washing cycle to wash dishes using water and detergent, a rinsing cycle to rinse dishes, and a drying cycle to remove moisture remaining on dishes.

One aspect of the present disclosure provides a dishwasher with improved drying efficiency and energy efficiency.

The technical problems to be achieved in the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by a person having ordinary skill in the technical field to which the present disclosure belongs from the description below.

A dishwasher according to one aspect may include a thermoelectric device including a tub forming a washing room, a first duct positioned on a first side of the tub along a first direction and having a first communication port through which air flows into the inside of the tub, a second duct positioned in a second direction different from the first direction from the first duct on the first side of the tub along the first direction and having a second communication port through which air flows from the inside of the tub, a heating unit positioned on the first side of the tub along the first direction and disposed within the first duct, and a cooling unit disposed within the second duct in the second direction with respect to the heating unit.

A dishwasher according to one aspect may include a tub forming a washing room, a first duct coupled to the tub at a first side of the tub and having a first communication port through which air flows into the inside of the tub, a second duct coupled to the tub at the first side of the tub and having a second communication port through which air flows from the inside of the tub, and a thermoelectric device including a heating unit disposed at the first side of the tub and disposed within the first duct, and a cooling unit disposed within the second duct.

A dishwasher according to one aspect comprises a tub forming a washing room, a first duct formed on a side wall of the tub and having an inlet and a first communication port connected to the inlet so that air can flow into the inside of the tub, a second communication port formed on a side wall of the tub and having an outlet formed in the second duct so that air can be discharged to the outside from the second communication port, and a thermoelectric device including a heating unit formed on a side wall of the tub and disposed within the first duct, and a cooling unit formed within the second duct, wherein air introduced into the first duct through the inlet passes through the heating unit and flows into the first communication port, air flowing into the first communication port flows into the inside of the tub, air flowing into the inside of the tub flows into the second communication port, air flowing into the second communication port flows into the second duct, and The air flowing through the second duct can pass through the cooling unit and flow to the outlet.

According to one aspect of the present disclosure, since heating and cooling dehumidification can be performed simultaneously through a thermoelectric device, a dishwasher with improved drying efficiency and energy efficiency can be provided.

According to one aspect of the present disclosure, a dishwasher with improved drying efficiency and energy efficiency can be provided, whereby efficient drying is possible even without an additional heater or dehumidifier.

The effects according to one aspect of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

FIG. 1 is a perspective view of a dishwasher according to one embodiment.

FIG. 2 is a side cross-sectional view of a dishwasher according to one embodiment.

FIG. 3 is a perspective view of a dishwasher according to one embodiment.

FIG. 4 is a perspective view of a dishwasher according to one embodiment.

FIG. 5 is a perspective view of a drying device of a dishwasher according to one embodiment.

FIG. 6 is a perspective view of a drying device of a dishwasher according to one embodiment.

FIG. 7 is an exploded perspective view of a drying device of a dishwasher according to one embodiment.

FIG. 8 is an exploded perspective view of a drying device of a dishwasher according to one embodiment.

FIG. 9 is a side view of a drying device of a dishwasher according to one embodiment.

FIG. 10 is a schematic diagram of a drying device of a dishwasher according to one embodiment.

Figure 11 is an exploded perspective view of a blower device of a dishwasher according to one embodiment.

Figure 12 is an exploded perspective view of a blower device of a dishwasher according to one embodiment.

FIG. 13 is a perspective view of a dishwasher according to one embodiment.

FIG. 14 is a perspective view of a dishwasher according to one embodiment.

FIG. 15 is a perspective view of a drying device of a dishwasher according to one embodiment.

FIG. 16 is a perspective view of a drying device of a dishwasher according to one embodiment.

Figure 17 is an exploded perspective view of a drying device of a dishwasher according to one embodiment.

Figure 18 is an exploded perspective view of a drying device of a dishwasher according to one embodiment.

The embodiments described in the present disclosure and the configurations illustrated in the drawings are merely preferred examples of the disclosure, and there may be various modified examples that can replace the embodiments and drawings of the present disclosure at the time of filing of the present application.

Additionally, the same reference numbers or symbols presented in each drawing of the present disclosure represent parts or components that perform substantially the same function.

In addition, the terminology used in this disclosure is used for the purpose of describing embodiments, and is not intended to limit and/or restrict the disclosure. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this disclosure, the terms "comprises" or "has" and the like are intended to specify that a feature, number, step, operation, component, part, or combination thereof described in the disclosure is present, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Additionally, in the present disclosure, each of the phrases “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C” can include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

Additionally, the term "and/or" includes any combination of multiple related described elements or any one of multiple related described elements.

Additionally, terms including ordinal numbers such as "first," "second," etc., used in the present disclosure may be used to describe various components, but the components are not limited by the terms, and the terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present disclosure, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term "and/or" includes any combination of a plurality of related listed items or any item among a plurality of related listed items.

In addition, the meaning of 'identical' in the present disclosure includes having similar properties or being similar within a certain range. Also, identical means 'substantially identical'. The meaning of substantially identical should be understood as including in the scope of 'identical' a numerical value corresponding to a difference within a range that does not have meaning with respect to a numerical value corresponding to a range of error in manufacturing or a standard value.

Additionally, terms such as "~part", "~device", "~block", "~absence", and "~module" may refer to a unit that processes at least one function or operation. For example, the terms may refer to at least one hardware such as an FPGA (field-programmable gate array)/ASIC (application specific integrated circuit), at least one software stored in a memory, or at least one process processed by a processor.

Meanwhile, the terms “front/rear direction,” “front,” “rear,” “left/right direction,” “left,” “right,” “up/down direction,” “height direction,” “upper,” and “lower” used in the description below are defined based on the drawings, and the shape and position of each component are not limited by these terms.

For example, the +X direction can be defined as forward and the -X direction as backward. For example, the +Y direction can be defined as right and the -Y direction as left. For example, the +Z direction can be defined as up and the -Z direction as down.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

FIG. 1 is a perspective view of a dishwasher according to one embodiment. FIG. 2 is a side cross-sectional view of the dishwasher according to one embodiment.

Referring to FIGS. 1 and 2, the dishwasher (1) may include a main body (10). The main body (10) may form the exterior of the dishwasher (1).

The dishwasher (1) may include a tub (12) provided inside the main body (10). The tub (12) may be provided in an approximately box shape. One side of the tub (12) may be open. The tub (12) may have an opening (12a). The opening (12a) may be formed at the front of the tub (12).

The dishwasher (1) may include a washing room (C) formed by a tub (12). The washing room (C) may be defined as an inner space of the tub (12). The washing room (C) may mean a space where dishes placed in a storage container are washed and dried.

The dishwasher (1) may include a door (11) provided to open and close the opening (12a) of the tub (12). The door (11) may be installed on the main body (10) to open and close the opening (12a) of the tub (12). The door (11) may be detachably mounted on the main body (10). The door (11) may be rotatably mounted on the main body (10). For example, the door (11) may be rotatably coupled to the main body (10) via a hinge (15).

For example, the upper part of the door (11) may be provided to be rotatable relative to the tub (12) with the lower part of the door (11) as the center. The lower part of the door (11) may be rotatably fixed to the main body (10). When the door (11) opens the opening (12a) of the tub (12), it may be opened from the upper side of the opening (12a). For example, during the drying process, as illustrated in FIG. 2, the door (11) may be provided to open the opening (12a) of the tub (12) to a predetermined range.

The dishwasher (1) may include a storage container provided inside the tub (12) to store dishes.

The storage container may include a plurality of baskets (51, 52, 53). The plurality of baskets (51, 52, 53) may be arranged to store various dishes. However, the present invention is not limited thereto, and the storage container may include a single basket.

The storage container may include an intermediate basket (52) positioned in the middle in the height direction (Z direction) of the dishwasher (1). The intermediate basket (52) may be introduced into or withdrawn from the washing room (C) through the opening (12a) of the tub (12). The intermediate basket (52) may be provided to be supported by an intermediate guide rack (13b). For example, the intermediate basket (52) may be provided to be slidably moved by the intermediate guide rack (13b). For example, the intermediate guide rack (13b) may be installed on the inner surface of the tub (12).

The storage container may include a lower basket (51) positioned at the bottom in the height direction (Z direction) of the dishwasher (1). The lower basket (51) may be introduced into or withdrawn from the washing room (C) through the opening (12a) of the tub (12). The lower basket (51) may be provided to be supported by a lower guide rack (13a). For example, the lower basket (51) may be provided to be slidably moved by the lower guide rack (13a). For example, the lower guide rack (13a) may be installed on the side of the tub (12).

A plurality of baskets (51, 52) can store relatively large dishes. However, the types of dishes stored in the plurality of baskets (51, 52) are not limited to relatively large dishes. That is, not only relatively large dishes but also relatively small dishes can be stored in the plurality of baskets (51, 52).

The storage container may include an upper basket (53) positioned at the top in the height direction (Z direction) of the dishwasher (1). The upper basket (53) is formed in the form of a rack assembly so that dishes having a relatively small volume can be stored. For example, cooking tools or cutlery such as a ladle, a knife, a turner, etc. can be stored in the upper basket (53). Small cups such as espresso cups can be stored in the upper basket (53). However, the types of dishes stored in the upper basket (53) are not limited to the above examples.

The upper basket (53) can be introduced into or withdrawn from the washing room (C) through the opening (12a) of the tub (12). The upper basket (53) can be provided to be supported by the upper guide rack (13c). For example, the upper basket (53) can be provided to be slidably moved by the upper guide rack (13c). For example, the upper guide rack (13c) can be installed on the side of the tub (12).

The dishwasher (1) may include a spray device (40) provided to spray washing water. The spray device (40) may spray washing water into a washing room (C). The spray device (40) may spray washing water toward dishes stored in a storage container. The spray device (40) may receive washing water from a sump assembly (70) to be described later.

The injection device (40) may include at least one injection unit. The injection device (40) may include one injection unit. The injection device (40) may include a plurality of injection units (41, 42, 43).

For example, the spray device (40) may include a first spray unit (41) disposed at the bottom of the lower basket (51) in the height direction (Z direction) of the dishwasher (1). The spray device (40) may include a second spray unit (42) disposed at the bottom of the middle basket (52) in the height direction (Z direction) of the dishwasher (1). The spray device (40) may include a third spray unit (43) disposed at the top of the upper basket (53) in the height direction (Z direction) of the dishwasher (1). However, the present invention is not limited thereto, and the spray device may include two or less or four or more spray units.

Each of the plurality of spray units (41, 42, 43) may be arranged to spray the washing water while rotating. Each of the first spray unit (41), the second spray unit (42), and the third spray unit (43) may be arranged to spray the washing water while rotating. The plurality of spray units (41, 42, 43) may be referred to as a plurality of spray rotors (41, 42, 43). The first spray unit (41), the second spray unit (42), and the third spray unit (43) may be referred to as a first spray rotor (41), a second spray rotor (42), and a third spray rotor (43), respectively.

However, the spray device (40) may spray the washing water in a different manner from the above-described example. For example, the first spray unit (41), unlike the second spray unit (42) and the third spray unit (43), may be fixed to one side of the lower surface (12d) of the tub (12). At this time, the first spray unit (41) is arranged to spray the washing water in a substantially horizontal direction by a fixed nozzle, and the washing water sprayed in a substantially horizontal direction from the nozzle of the first spray unit (41) may have its direction changed by a switching assembly (not shown) arranged inside the washing room (C) and may move upward. The switching assembly may be installed on a rail (not shown) and may be arranged to be capable of translationally moving along the rail. Meanwhile, although the first spray unit (41) has been described as an example, the second spray unit (42) and the third spray unit (43) may also be arranged to spray the washing water using a fixed nozzle, similar to the above-described example.

The dishwasher (1) may include an auxiliary spray device (30). The auxiliary spray device (30) may be arranged on a lower side of the washing room (C) to spray washing water on a portion of the washing room (C). The auxiliary spray device (30) is designed to spray water at a relatively high pressure compared to the spray device (40), so as to intensively wash heavily contaminated dishes. The auxiliary spray device (30) may be referred to as an auxiliary spray unit (30). The auxiliary spray device (30) may be arranged to spray washing water while rotating. The auxiliary spray device (30) may be referred to as an auxiliary spray rotor (30).

The auxiliary injection device (30) may be provided as a component of the injection device (40). Hereinafter, the plurality of injection units may be a concept including at least two of the first injection unit (41), the second injection unit (42), the third injection unit (43), or the auxiliary injection unit (30). Hereinafter, the plurality of injection rotors may be a concept including at least two of the first injection rotor (41), the second injection rotor (42), the third injection rotor (43), or the auxiliary injection rotor (30).

The dishwasher (1) may optionally be equipped with an auxiliary spray device (30). That is, the auxiliary spray device (30) may be omitted from the dishwasher (1).

The dishwasher (1) may include a sump assembly (70). The sump assembly (70) may be referred to as a sump (70).

The sump assembly (70) may be provided to accommodate wash water. The sump assembly (70) may collect wash water from the wash room (C). For example, in order to smoothly collect water from the sump assembly (70), the lower surface (12d) of the tub (12) may be provided to slope downward toward the sump assembly (70). Wash water from the wash room (C) may flow along the slope of the lower surface (12d) of the tub (12) and smoothly flow into the sump assembly (70).

The dishwasher (1) may include a circulation pump (71) that pumps wash water stored in a sump assembly (70) to a spray device (40). The circulation pump (71) may be provided as a component of the sump assembly (70). The circulation pump (71) may be placed in the machine room (L).

The dishwasher (1) may include a drain pump (72) for draining wash water and/or foreign substances (e.g., food waste, etc.) remaining in the sump assembly (70). The drain pump (72) may be provided as a component of the sump assembly (70). The drain pump (72) may be placed in the machine room (L).

The sump assembly (70) may be arranged to supply wash water to at least one of the plurality of spray units (41, 42, 43, 30). The sump assembly (70) may be arranged to selectively supply wash water to the plurality of spray units (41, 42, 43, 30).

The dishwasher (1) may include a duct (14). The duct (14) may be arranged to guide wash water from the sump assembly (70) to the spray device (40). The duct (14) may include a shape extending approximately in the height direction (Z direction).

The dishwasher (1) may include a machine room (L) which is a space provided under the tub (12). The machine room (L) may be a place where a configuration for circulating wash water is arranged. The dishwasher (1) may include a base frame (20) forming the machine room (L).

At least a portion of the sump assembly (70) may be placed in the machine room (L). For example, most of the sump assembly (70) may be placed in the machine room (L). That is, the area of the sump assembly (70) located in the washing room (C) may be smaller than the area of the sump assembly (70) located in the machine room (L). By reducing the area of the sump assembly (70) occupying the washing room (C), the area of the washing room (C) can be secured. Thereby, the capacity of the washing room (C) can be increased, and the dish storage capacity can be improved.

The dishwasher (1) may include a filter (60). The filter (60) may be provided to filter foreign substances contained in wash water flowing into the sump assembly (70). Wash water filtered by the filter (60) may be delivered to the spray device (40) by the sump assembly (70). The filter (60) may be detachably mounted to the sump assembly (70). For example, the filter (60) may include at least one of a fine filter, a coarse filter, or a micro filter.

FIG. 3 is a perspective view of a dishwasher according to one embodiment. FIG. 4 is a perspective view of a dishwasher according to one embodiment. FIG. 4 illustrates the dishwasher illustrated in FIG. 3 from another direction.

Referring to FIGS. 3 and 4, the dishwasher (1) may include a drying device (100). The drying device (100) may be configured to operate during a rinsing cycle and/or a drying cycle. The drying device (100) may be configured to remove moisture inside the tub (12). For example, the drying device (100) may be configured to remove moisture remaining on dishes. In addition, for example, the drying device (100) may lower humidity inside the tub (12). The drying device (100) may be a dehumidifying device (100).

Meanwhile, in this document, air can be defined as a concept that includes both dry air that contains little water vapor and moist air that contains water vapor.

The drying device (100) may be provided in at least one or more forms. The dishwasher (1) may include a single drying device (100). The dishwasher (1) may include a plurality of drying devices (100). The number of drying devices (100) is not limited.

The drying device (100) can remove moisture from dishes or reduce humidity inside the tub by heating and/or dehumidifying the air. For example, the outside air can be heated and supplied to the tub, and then dehumidified by cooling the high-temperature and humid air inside the tub. For example, the outside air can be heated through a heating unit of a thermoelectric device and then flowed into the tub, and the air discharged from the tub can be cooled through a cooling unit and then flowed to the outside of the tub and the main body (see FIGS. 9 and 10). Through this, the high-temperature and humid air inside the tub can become high-temperature and low-humidity air.

The drying device (100) can force air flow inside the tub (12). The drying device (100) can form an air current inside the tub (12). The drying device (100) can be arranged to cause forced convection inside the tub (12). The drying device (100) can generate a blowing force.

The drying device (100) may be placed on the outside of the tub (12). The drying device (100) may be provided on the first side (12b) along one direction (Y) of the tub (12). For example, the first side (12b) of the tub (12) may be the left side (12b) of the tub (12). However, the present invention is not limited thereto, and the drying device (100) may be placed on the right side (12c) of the tub (12).

The drying device (100) may include a duct (110, 120). The duct (110, 120) may include a plurality of ducts (110, 120). The plurality of ducts (110, 120) may include a first duct (110) and a second duct (120). The first duct (110) and the second duct (120) may be arranged on the outside of the tub (12). For example, the first duct (110) and the second duct (120) may be arranged on one side (e.g., the left side) of the tub (12). The first duct (110) and the second duct (120) may be arranged along one direction (X, -X). For example, the first duct (110) and the second duct (120) may be arranged along the front-back direction. For example, the first duct (110) may be arranged in front of the second duct (120), and the second duct (120) may be arranged in the rear of the first duct (110). The first duct (110) may be a front duct, and the second duct (120) may be a rear duct. In addition, the duct provided in the rear may be the first duct, and the duct provided in the front may be the second duct.

Since the first duct (110) and the second duct (120) are arranged along one direction, even if the space between the tub (12) and the main body (10) is not wide, the drying device (100) can be arranged between the tub (12) and the main body (10). For example, if the first duct (110) and the second duct (120) are arranged in the front-back direction, a large distance in the left-right direction between the tub (12) and the main body (10) is not required, so that a compact configuration of the drying device (100) is possible.

However, the positions of the first duct (110) and the second duct (120) are not limited to the above-described example. For example, the first duct (110) and the second duct (120) may be arranged along the vertical direction or along the left-right direction.

A thermoelectric device (130) may be accommodated in the first duct (110). For example, at least a part of the thermoelectric device (130) may be accommodated in the first duct (110). Air introduced into the first duct (110) may pass through a part of the thermoelectric device (130) and flow into the interior of the tub (12). A first flow path (110a) may be formed in the first duct (110). Air outside the main body (10) and/or the tub (12) may pass through the first flow path (110a) and flow into the interior of the tub (12).

The second duct (120) may accommodate a thermoelectric device (130). For example, at least a part of the thermoelectric device (130) may be accommodated in the second duct (120). Air introduced into the second duct (120) may pass through a part of the thermoelectric device (130) and flow to the outside of the tub (12). A second flow path (120a) may be formed within the second duct (120). Air within the tub (12) may flow to the outside of the main body (10) and/or the tub (12) through the second flow path (120a).

The drying device (100) may include an inflow duct (140). The inflow duct (140) may be arranged at the front side of the first duct (110). The inflow duct (140) may be coupled to the lower part of the first duct (110). The inflow duct (140) may be connected to the first duct (110). External air may flow into the first duct (110) through the inflow duct (140). The inflow duct (140) may be a third duct. An inflow path (140a) may be formed within the inflow duct (140). External air of the main body (10) and/or the tub (12) may flow into the first path (110a) through the inflow path (140a).

The drying device (100) may include a flue cap (180, 190). The flue cap (180, 190) may include a plurality of flue caps (180, 190). The plurality of flue caps (180, 190) may include a first flue cap (190) and a second flue cap (180). The first flue cap (190) may cover the first flue port (112), and the second flue cap (180) may cover the second flue port (122). The first flue cap (190) may be a discharge cap (190). The second communication port (122) cap (180) may be a suction cap (180) that covers the second communication port (122) through which air flows from the tub (12) to the second duct (120). The suction cap (180) may be coupled to the second duct (120), and the discharge cap (190) may be coupled to the first duct (110). However, the first communication port cap may be the suction cap (180), and the second communication port cap may be the discharge cap (190).

The dishwasher may further include a blower (200). The blower (200) may force air inside the tub (12). The blower (200) may form an air current inside the tub (12). The blower (200) may be arranged to cause forced convection inside the tub (12). The blower (200) may generate a blowing force.

The blower (200) may be placed on the outside of the tub (12). The blower (200) may be provided on the second side (12c) of the tub (12). For example, the second side (12c) of the tub (12) may be the right side (12c) of the tub (12). However, the present invention is not limited thereto, and the blower (200) may be placed on the left side (12b) of the tub (12).

For example, the drying device (100) and the blower device (200) may be arranged to face each other. As the drying device (100) and the blower device (200) are arranged to blow air while facing each other, the air inside the tub (12) can flow actively.

However, it is not limited to what is shown in the drawing, and the drying device (100) and the blower device (200) can be installed in various positions for drying inside the tub (12).

The blower device (200) may include a blower duct (220). The blower duct (220) may be positioned on the outside of the tub (12). For example, the blower duct (220) may be positioned on one side (e.g., the right side) of the tub (12).

Air drawn into the blower duct (220) can pass through a part of the thermoelectric device (130) and flow into the inside of the tub (12). A third flow path (221) can be formed inside the blower duct (220). Air on the rear side of the inside of the tub (12) can pass through the third flow path (221) and flow into the front side of the inside of the tub (12).

The blower (200) may include a suction cap (230). The suction cap (230) may be positioned on the upper rear side of the tub (12). The suction cap (230) may cover the suction port (2251) of the blower (200).

The blower (200) may include a discharge cap (240). The discharge cap (240) may include a plurality of discharge caps (241, 242). The plurality of discharge caps (241, 242) may be arranged at the upper and lower portions of the front side of the tub (12). The discharge caps (241, 242) may cover discharge ports (2252, 2253) of the blower (200).

The drying device (100) and/or the blower device (200) may operate during the rinsing cycle and/or the drying cycle.

For example, based on whether it is a rinsing cycle and/or a drying cycle, at least one of the first blower fan (160) and the second blower fan (170) may be operated. Based on the operation of one of the first blower fan (160) and the second blower fan (170), air is drawn in from the outside and flows through the inlet (111) into the first duct (110), the air inside the first duct (110) is heated and then flows through the first communication port (112) and the first communication port cap (190) into the inside of the tub (12), the air inside the tub (12) absorbs moisture inside the tub (12) and then flows through the second communication port cap (180) and the second communication port (122) into the second duct (120), and the air inside the second duct (120) is cooled and condensed and then flows through the outlet (121) to the outside.

FIG. 5 is a perspective view of a drying device of a dishwasher according to one embodiment. FIG. 6 is a perspective view of a drying device of a dishwasher according to one embodiment. FIG. 7 is an exploded perspective view of a drying device of a dishwasher according to one embodiment. FIG. 8 is an exploded perspective view of a drying device of a dishwasher according to one embodiment.

Figure 6 shows the drying device of the dishwasher shown in Figure 5 from another direction. Figure 8 shows the drying device of the dishwasher shown in Figure 7 from another direction.

Referring to FIGS. 5 to 8, a drying device (100) of a dishwasher according to one embodiment can heat and/or cool and dehumidify air. The drying device (100) can include a heating and cooling device (130). The heating and cooling device (130) can include a thermoelectric device (130). The heating and cooling device (130) can heat air flowing inside a first duct (110) from a magnetic cooling device (130) using a thermoelectric effect, and cool air flowing inside a second duct (120). However, the heating and cooling device (130) is not limited to the thermoelectric device (130). For example, the heating and cooling device (130) may include a vapor cooling device, a refrigerant-using refrigerant-using air cooling device, a fan-using air cooling method, a water cooling method using cooling water, etc. The following description will be based on the thermoelectric device (130) for convenience of explanation.

The thermoelectric device (130) may include a heating unit (131) and a cooling unit (132). The heating unit (131) may heat air that is introduced from the outside and passes through the first duct (110) to flow into the inside of the tub (12). The cooling unit (132) may cool air that passes through the second duct (120) to flow from the inside of the tub (12) to the outside of the drying device (100), the outside of the tub (12), and the outside of the main body (10).

The heating unit (131) and the cooling unit (132) can be arranged in one direction. For example, based on the fact that the drying device (100) is arranged on the side wall of the tub (12), the heating unit (131) and the cooling unit (132) can be arranged along the front-back direction. Since the heating unit (131) and the cooling unit (132) are arranged in one direction, a large space is not required between the tub (12) and the main body (10), and both the heating unit (131) and the cooling unit (132) can be positioned between the tub (12) and the main body (10) even in a small space.

Since the first duct (110) and the second duct (120) are arranged along one direction and the heating unit (131) and the cooling unit (132) are arranged along one direction, even if the space between the tub (12) and the main body (10) is not wide, the drying device (100) can be arranged between the tub (12) and the main body (10). For example, if the first duct (110) in which the heating unit (131) is arranged and the second duct (120) in which the cooling unit (132) is arranged are arranged in the front-back direction and the thermoelectric module (133) is arranged between the front-back direction of the first duct (110) and the second duct (120), a large distance in the left-right direction between the tub (12) and the main body (10) is not required, so that a compact configuration of the drying device (100) is possible.

The heating member (131) may include a heating member. The heating member may include a heating plate (131a). The heating plate (131a) may be in contact with one surface of the thermoelectric module (133). The heating plate (131a) may transfer heat from the thermoelectric module (133) into the first duct (110). For example, the heating plate (131a) may emit heat into the first duct (110). For example, the heating plate (131a) may include aluminum. The heating plate (131a) may extend from the thermoelectric module (133) toward the interior of the first duct (110). For example, the heating plate (131a) may extend in the forward-backward direction. The heating plate (131a) may be the first plate.

The heating unit (131) may include a fin. One end of the fin (131c) of the heating unit (131) may be connected to the heating plate (131a). For example, the fin (131c) of the heating unit (131) may extend perpendicularly to the extension direction of the heating plate (131a). The fin (131c) may include a plurality of fins (131c).

The heating unit (131) may be positioned within the first duct (110). For example, at least a portion of the heating plate (131a) and a plurality of fins (131c) may be positioned within the first duct (110) and/or the first flow path (110a). The heating unit (131) may be positioned between the inlet (111) and the first communication port (112) on the first flow path (110a). Air within the first duct (110) and the first flow path (110a) that flows into the inlet (111) and toward the first communication port (112) to flow into the inside of the tub (12) may be heated while passing through a portion of the heating unit (131). Therefore, the heating unit (131) may heat the air within the first duct (110) and/or the first flow path (110a).

The cooling member (132) may include a cooling member. The cooling member may include a cooling plate (132a). The cooling plate (132a) may be in contact with one surface of the thermoelectric module (133). The cooling plate (132a) may transfer heat from the second duct (120) to the thermoelectric module (133). For example, the cooling plate (132a) may absorb heat within the second duct (120). For example, the cooling plate (132a) may include aluminum. The cooling plate (132a) may extend from the thermoelectric module (133) toward the interior of the second duct (120). For example, the cooling plate (132a) may extend in the forward-backward direction. The cooling plate (132a) may be the second plate.

The cooling unit (132) may include a fin. One end of the fin (132c) of the cooling unit (132) may be connected to the cooling plate (132a). For example, the fin (132c) of the cooling unit (132) may extend perpendicularly to the extension direction of the cooling plate (132a). The fin (132c) may include a plurality of fins (132c).

The cooling unit (132) may be positioned within the second duct (120). For example, at least a portion of the cooling plate (132a) and a plurality of fins (132c) may be positioned within the second duct (120) and/or the second passage (120a). Air within the second duct (120) and the second passage (120a) that flows from the tub (12) through the second communication port (122) and toward the outlet (121) to flow to the outside may be cooled while passing through a portion of the cooling unit (132). Accordingly, the cooling unit (132) may cool the air within the second duct (120) and/or the second passage (120a) and remove moisture within the air to dehumidify the air flowing to the outside.

The thermoelectric device (130) may further include a thermoelectric module (133). The thermoelectric module (133) may cause the heating unit (131) to become hot and the cooling unit (132) to become cold. The heating unit (131) may be arranged on one side of the thermoelectric module (133), and the cooling unit (132) may be arranged on the other side of the thermoelectric module (133). For example, the thermoelectric module (133) may be arranged between the heating unit (131) and the cooling unit (132). The thermoelectric modules (133) may be provided in multiple numbers. One side of the plurality of thermoelectric modules (133) may be in contact with the heating plate (131a), and the other side of the plurality of thermoelectric modules (133) may be in contact with the cooling plate (132a). However, the positions of the plurality of thermoelectric modules (133) are not limited to the above-described example. For example, a plurality of thermoelectric modules (133) may be arranged spaced apart from the heating unit (131) and the cooling unit (132).

The thermoelectric device (130) may be coupled, supported, and/or fixed within the first duct (110) and the second duct (120). For example, the heating unit (131) may be fixed within the first duct (110) by a catch, and the cooling unit (132) may be fixed within the second duct (120) by a catch. However, the manner in which the thermoelectric device (130) is fixed is not limited to the above-described example.

The drying device (100) may include a first duct (110). The first duct (110) may guide air flowing from the exterior of the main body (10), the exterior of the tub (12), and/or the exterior of the drying device (100) to the interior of the tub (12). The first duct (110) may guide air blown by the first blower fan (160). The first duct (110) may include a bent shape. The first duct (110) may extend in a vertical direction.

The first duct (110) may include a first duct section (110b) and a second duct section (110c). For example, the first duct (110) may be formed by a first duct section (110b) and a second duct section (110c). The first duct section (110b) and the second duct section (110c) may be detachably coupled. However, the present invention is not limited thereto, and for example, the first duct section (110b) and the second duct section (110c) may be provided as one piece.

A first flow path (110a) can be formed between the first duct section (110b) and the second duct section (110c). The first flow path (110a) can guide air blown by the first blower fan (160) into the interior of the tub (12).

The drying device (100) may include an inlet (111). For example, the first duct (110a) may include an inlet (111). The inlet (111) may be formed in the first duct (110). For example, the inlet (111) may be formed at the lower portion of the second duct section (110c) of the first duct (110). External air may flow into the interior of the first duct (110) through the inlet (111). When the heating unit (131) is accommodated in the first duct (110), the inlet (111) may be provided below the heating unit (131).

The drying device (100) may include a first communication port (112). For example, the first flow path (110a) may include a first communication port (112). The first communication port (112) may be formed in the first duct (110). For example, the first communication port (112) may be formed in the middle of the second duct section (110c) of the first duct (110). Air inside the first duct (110) may flow into the inside of the tub (12) through the first communication port (112).

The first duct (110) may include a first fan mounting portion (110d). A first blower fan (160) may be mounted on the first fan mounting portion (110d). The first blower fan (160) may be detachably coupled to the first fan mounting portion (110d). The first fan mounting portion (110d) may be arranged at the lower portion of the first duct portion (110b). The first fan mounting portion (110d) may be coupled to the first duct portion (110b). The first fan mounting portion (110d) may be formed integrally with the first duct portion (110b).

The first fan mounting portion (110d) may be located upstream of the heating portion (131) and the first communication port (112) in the first flow path (110a) based on the air flow direction. For example, the first fan mounting portion (110d) may be provided at a position corresponding to the inlet (111).

The first duct (110) may include a first cap coupling portion (110e). A first communication port cap (190) may be coupled to the first cap coupling portion (110e). The first communication port cap (190) may be detachably coupled to the first cap coupling portion (110e). The first cap coupling portion (110e) may be arranged in the middle of the first duct portion (110b).

The first cap joint (110e) may be located downstream of the heating unit (131) from the first flow path (110a) based on the air flow direction. For example, the first cap joint (110e) may be provided at a position corresponding to the first communication port (112).

The drying device (100) may include a second duct (120). The second duct (120) may guide air flowing from the interior of the tub (12) to the exterior of the main body (10), the exterior of the tub (12), and/or the drying device (100). The second duct (120) may guide air blown by the second blower fan (170). The second duct (120) may extend in a vertical direction.

The second duct (120) may include a first duct section (120b) and a second duct section (120c). For example, the second duct (120) may be formed by a first duct section (120b) and a second duct section (120c). The first duct section (120b) and the second duct section (120c) may be detachably coupled. However, the present invention is not limited thereto, and the second duct (120), for example, the first duct section (120b) and the second duct section (120c) may be provided integrally.

A second flow path (120a) can be formed between the first duct section (120b) and the second duct section (120c). The second flow path (120a) can guide air blown by the second blower fan (170) into the interior of the tub (12).

The drying device (100) may include an outlet (121). For example, the second duct (120a) may include an outlet (121). The outlet (121) may be formed in the second duct (120). For example, the outlet (121) may be formed at the lower portion of the second duct section (120c) of the second duct (120). For example, the outlet (121) may allow air inside the second duct (120) to flow to the outside through the outlet (121). When the cooling unit (132) is accommodated in the second duct (120), the outlet (121) may be provided below the cooling unit (132) and above the drain (123) and the drain guide (124).

The drying device (100) may include a second communication port (122). For example, the second flow path (120a) may include a second communication port (122). The second communication port (122) may be formed in the second duct (120). For example, the second communication port (122) may be formed in the upper portion of the second duct section (120c) of the second duct (120). Air inside the tub (12) may flow into the interior of the second duct (120) through the second communication port (122).

The second duct (120) may include a second fan mounting portion (120d). A second blower fan (170) may be mounted on the second fan mounting portion (120d). The second blower fan (170) may be detachably coupled to the second fan mounting portion (120d). The second fan mounting portion (120d) may be arranged on the upper portion of the second duct portion (120c). The second fan mounting portion (120d) may be coupled to the second duct portion (120c). The second fan mounting portion (120d) may be formed integrally with the second duct portion (120c).

The second fan mounting portion (120d) may be located upstream of the cooling portion (132) and the second communication port (122) in the second flow path (120a) based on the air flow direction. For example, the second fan mounting portion (120d) may be provided at a position corresponding to the second communication port (122).

The second duct (120) may include a second cap coupling portion (120e). A second communication port cap (180) may be coupled to the second cap coupling portion (120e). The second communication port cap (180) may be detachably coupled to the second cap coupling portion (120e). The second cap coupling portion (120e) may be arranged on the upper portion of the second duct portion (120c).

The second cap joint (120e) may be located upstream of the cooling unit (132) from the second flow path (120a) based on the air flow direction. For example, the second cap joint (120e) may be provided at a position corresponding to the second communication port (122).

The drying device (100) may include a first blower fan (160) and a second blower fan (170). The first blower fan (160) and the second blower fan (170) may generate blowing force as they rotate. For example, the first blower fan may generate suction force so that outside air is introduced into the first duct (110) and the inside of the tub (12). For example, the second blower fan (170) may generate discharge force so that the inside of the tub (12) is discharged into the second duct (120) and the outside. The first blower fan (160) may be a first fan, and the second blower fan (170) may be a second fan. At least one of the first blower fan (160) and the second blower fan (170) may be omitted.

For example, the first and second blower fans (160, 170) may be axial fans, radial fans, or centrifugal fans. However, the types of the first and second blower fans (160, 170) are not limited thereto, and any configuration that generates blowing force is sufficient.

The drying device (100) may include a drain (123). When condensation of the cooled air in the cooling unit (132) occurs, condensate is generated and the air may be dehumidified. The drain (123) may allow the condensate to be discharged. The drain (123) may be formed below the cooling unit (132). For example, the drain (123) may be provided below the outlet (121). For example, the drain (123) may be formed at the bottom of the second duct (120). The drain (123) may be formed by combining the first duct section (120b) and the second duct section (120c) of the second duct (120). For example, the first drainage port forming part (123b) at the bottom of the first duct part (120b) of the second duct (120) and the second drainage port forming part (123c) at the bottom of the second duct part (120c) can be combined to form a drainage port (123).

The drying device (100) may further include a drain guide (124). The drain guide (124) may guide condensate generated in the cooling unit (132) to flow to the drain (123). The drain guide (124) may be formed below the cooling unit (132) and above the drain (123). The drain guide (124) may be formed by combining the first duct part (120b) and the second duct part (120c) of the second duct (120). For example, the drain guide (124) forming part (124b) of the first duct part (120b) of the second duct (120) and the drain forming part (124c) of the second duct part (120c) may be combined to form the drain (123).

The drying device (100) may further include an inlet duct (140). The inlet duct (140) may guide the flow of air flowing from the exterior of the main body (10), the exterior of the drying device (100), and the exterior of the tub (12) to the first duct (110). The inlet duct (140) may be connected to the first duct (110). An inlet (141) may be formed at one end of the inlet duct (140), and a joining portion (142) may be formed at the other end of the inlet duct (140) to be joined to the first duct (110). The inlet duct (140) may cover the inlet (111). An inlet path (140a) may be formed inside the inlet duct (140). The inflow path (140a) includes an inlet port (141) and can be connected to the first path (110a). The inflow duct (140) can be a third duct (140).

The drying device (100) may further include a filter (150). The filter (150) may be placed within the inlet duct (140). The filter (150) may filter (150) the air flowing into the inlet duct (140). The filter (150) may remove foreign substances in the air flowing into the thermoelectric module (133) and the tub (12), thereby extending the lifespan of the drying device (100) and the tub (12).

The drying device (100) may include a second communication port cap (180). The second communication port cap (180) may be provided to face the second blower fan (170). The second communication port cap (180) may be detachably mounted on the inner wall of the first side (12b) of the tub (12). The second communication port cap (180) may be provided to communicate with the second communication port (122). The second communication port cap (180) may be the second cap (180).

The second combustion port cap (180) can suck air from inside the tub (12) by the blowing force of the second blowing fan (170). The second combustion port cap (180) can form an intake port.

The second combustion port cap (180) may include a body portion (181). The body portion (181) may be provided to cover the third blower fan (210). The body portion (181) may prevent at least one of foreign substances or washing water of the tub (12) from flowing into the second blower fan (170). For example, the body portion (181) may prevent washing water from penetrating into the second blower fan (170) during a washing process and/or a rinsing process. For example, foreign substances (for example, food waste, etc.) inside the tub (12) may be prevented from penetrating into the second blower fan (170). As a result, damage to the second blower fan (170) may be prevented, and the lifespan of the second blower fan (170) may be extended.

The second communication port cap (180) may include a protrusion (182). The protrusion (182) may protrude from the body (181) toward the inside of the tub (12). The protrusion (182) may minimize suction pressure by securing a space between the second blower fan (170) and the inside of the second communication port cap (180).

The second opening cap (180) may include a suction guide rib (183). The suction guide rib (183) may be formed on a side of the body (181) facing the second blower fan (170). The suction guide rib (183) may be provided to guide air to the second blower fan (170). For example, the suction guide rib (183) may include a downwardly inclined shape. For example, the suction guide rib (183) may include a curved shape.

The suction guide rib (183) can prevent the washing water from flowing into the second blower fan (170). For example, the suction guide rib (183) can guide the washing water flowing into the second communication port cap (180) downward between the inner wall of the tub (12) and the second communication port cap (180). As a result, the washing water flowing into the second communication port cap (180) can flow downward without flowing into the second blower fan (170). The washing water guided by the suction guide rib (183) can be discharged into the tub (12) through the discharge hole (185).

The suction guide rib (183) can reduce the flow resistance of air flowing toward the second blower fan (170). The air flowing between the second communication port cap (180) and the inner wall of the tub (12) can smoothly move toward the second blower fan (170) as it flows along the curved shape of the suction guide rib (183).

For example, a plurality of suction guide ribs (183) may be provided. A plurality of suction guide ribs (183) may be arranged to be spaced apart from each other. A plurality of suction guide ribs (183) may be arranged in a vertical direction.

The second communication port cap (180) may include a duct coupling portion (184). The duct coupling portion (184) of the second communication port cap (180) may be detachably coupled to the second cap coupling portion (120e) of the second duct (120). For example, the duct coupling portion (184) may be fixed to the second cap coupling portion (120e) by rotating in a state corresponding to the second cap coupling portion (120e). For example, the duct coupling portion (184) may be separated from the second cap coupling portion (120e) by rotating in a state fixed to the second cap coupling portion (120e).

The second communication port cap (180) may include a discharge hole (185). The discharge hole (185) may discharge the washing water that has flowed into the second communication port cap (180). The discharge hole (185) may be formed at the lower end of the second communication port cap (185). For example, the washing water guided by the suction guide rib (183) may naturally flow downward and be discharged into the tub (12) through the discharge hole (185).

The drying device (100) may include a first communication port cap (190). The first communication port cap (190) may be provided to communicate the first duct (110) with the interior of the tub (12). The first communication port cap (190) may be detachably mounted on the inner wall of the first side (12b) of the tub (12). The first communication port cap (190) may be the first cap.

The first vent cap (190) can discharge air guided by the first duct (110) to the tub (12). The first vent cap (190) can form an exhaust port.

The first opening cap (190) may include a discharge guide rib (191). The discharge guide rib (191) may guide air guided into the interior of the tub (12) by the first duct (110) to the lower portion of the tub (12). The discharge guide rib (191) may guide air flowing on the first flow path (110a) to the lower portion of the tub (12). The discharge guide rib (191) may be provided to be inclined downward toward the interior of the tub (12).

A plurality of discharge guide ribs (191) may be provided. A plurality of discharge guide ribs (191) may be arranged to be spaced apart from each other. A discharge port may be formed between a plurality of discharge guide ribs (191).

The first communication port cap (190) may include a duct coupling portion (192). The duct coupling portion (192) of the first communication port cap (190) may be detachably coupled to the first cap coupling portion (110e) of the first duct (110). For example, the duct coupling portion (192) may be fixed to the first cap coupling portion (110e) by rotating in a state corresponding to the first cap coupling portion (110e). For example, the duct coupling portion (192) may be separated from the first cap coupling portion (110e) by rotating in a state fixed to the first cap coupling portion (110e).

The first communication port (112) may be provided to correspond to the first communication port cap (190). For example, the first communication port (112) may be provided to face the first communication port cap (190).

The second communication port (122) may be provided to correspond to the second communication port cap (180). For example, the second communication port (122) may be provided to face the second communication port cap (180).

The first communication port (112) may be located upstream of the second communication port (122) based on the direction of air flow.

The drying device (100) may include a first sealing member (151). The first sealing member (151) may be provided to prevent air flowing out from the first duct (110) from flowing out between the first duct (110) and the tub (12). The first sealing member (151) may be arranged on the lower side of the first duct (110). The first sealing member (151) may be arranged between the tub (12) and the first duct (110). The first sealing member (151) may be arranged to correspond to the first communication port cap (190) to seal between the first duct (110) and the tub (12).

The drying device (100) may include a second sealing member (152). The second sealing member (152) may be provided to prevent air flowing into the second duct (120) from leaking between the second duct (120) and the tub (12). The second sealing member (152) may be arranged on the upper side of the second duct (120). The second sealing member (152) may be arranged between the tub (12) and the second duct (120). The second sealing member (152) may be arranged to correspond to the second communication port cap (180) to seal between the second duct (120) and the tub (12).

FIG. 9 is a side view of a drying device of a dishwasher according to one embodiment. FIG. 10 is a schematic diagram of a drying device of a dishwasher according to one embodiment.

Referring to FIGS. 9 and 10, the inlet duct (140), the first duct (110), the tub (12), and the second duct (120) can be connected. Below, the flow of air that is introduced from the outside, passes through the tub (12), and is discharged back to the outside will be described.

In a dishwasher according to one embodiment, air outside the tub (12) and outside the drying device (100) can flow into the inlet duct (140) through the inlet port (141). For example, the first blower fan (160) and the second blower fan (170) can operate during the rinsing and/or drying cycle. Based on the operation of the first blower fan (160), air outside the tub (12) and outside the drying device (100) can flow into the inlet duct (140a).

The air flowing into the inlet path (140a) can be filtered while passing through the filter (150). For example, the filter (150) can be located downstream of the inlet (141) and upstream of the inlet (111). Additionally, the filter (150) can be placed in the inlet (141). Since the inlet duct (140) and the first duct (110) are connected, the air in the inlet path (140a) can flow into the first path (110a) inside the first duct (110) through the inlet (111).

The air flowing into the interior of the first duct (110) can flow to the heating unit (131) located downstream of the inlet (111). The air inside the first duct (110) can be heated as it passes through the heating unit (131) and its temperature can rise. The air whose temperature has risen as it passes through the heating unit (131) can flow toward the first communication port (112). The air inside the first duct (110) (e.g., the first flow path (110a)) can flow into the interior of the tub (12) through the first communication port (112).

Since the discharge guide rib of the first communication port cap (190) is inclined downward toward the inside of the tub (12), air in the first flow path (110a) heading toward the inside of the tub (12) can be guided to the lower part of the inside of the tub (12). The air guided into the inside of the tub (12) can circulate in the washing room (C) and have moisture. For example, during the rinsing and/or drying cycle, the high-temperature air in the first duct (110) can flow into the washing room (C) to remove moisture from dishes and absorb moisture inside the washing room (C). The air in the washing room (C) that contains moisture and has high humidity can flow into the inside of the second duct (120) (e.g., the second flow path (120a)) through the intake port and the second communication port (122).

For example, the second communication port (122) may be arranged above the first communication port (112). The air inside the first duct (110) may be guided to the lower part of the tub (12) by the discharge guide rib (191) to circulate in the washing room (C), and the air circulated in the washing room (C) may rise and flow into the interior of the second duct (120). For example, based on the operation of the second blower fan (170), the air inside the tub (12) (e.g., the washing room (C)) may flow into the interior of the second duct (120). Accordingly, the air flowing into the inside of the tub (12) through the first communication port (112) does not flow directly into the second communication port (122), but rather absorbs a large amount of moisture inside the tub (12) and then flows into the inside of the second duct (120) through the second communication port (122). In addition, the first communication port (112) can allow the air heated by the dishes in the baskets (51, 52, 53) to flow directly. For example, the first communication port (112) is provided adjacent to the second basket (52), so that the heated air in the first duct (110) can quickly remove moisture from the dishes stored in the second basket (52).

The air flowing into the second duct (120) can flow to the cooling unit (132) provided downstream of the second communication port (122). The air inside the second duct (120) can be cooled as it passes through the cooling unit (132), thereby lowering its temperature. As the temperature of the air inside the second duct (120) drops and becomes lower than the dew point, condensation can occur. The condensation can flow downward, pass through the drain guide (124), and be discharged to the outside of the second duct (120) through the drain port (123). The air in which condensation occurs as it passes through the cooling unit (132) can have its humidity reduced. The air whose temperature has dropped as it passes through the cooling unit (132) can flow toward the outlet (121). Air inside the second duct (120) (e.g., second path (120a)) can flow through the outlet (121) to the outside of the tub (12) and the outside of the drying device (100) (e.g., the outside of the second duct (120)).

In the thermoelectric device (130) of the dishwasher according to one embodiment, the thermoelectric device (130) can absorb heat from the air of the second passage (120a) to remove humidity in the air, and release the heat to the air of the first passage (110a). Therefore, by heating the air with one thermoelectric device (130), the humidity of the air inside the tub (12) can be lowered, and the discharged air can be dehumidified and discharged to the outside, so that the energy efficiency of the dishwasher can be increased. In addition, the dishwasher according to one embodiment can dry dishes in a short period of time by using the thermoelectric device (130), so that the drying efficiency can be increased, and since efficient drying is possible even without an additional heater or dehumidifier, there is an effect of increasing energy efficiency. However, it will be apparent to those skilled in the art that the drying efficiency and energy efficiency of the dishwasher according to one embodiment are high even with an additional heater or dehumidifier.

Fig. 11 is an exploded perspective view of a blower device of a dishwasher according to one embodiment. Fig. 12 is an exploded perspective view of a blower device of a dishwasher according to one embodiment.

Referring to FIGS. 11 and 12, a dishwasher according to one embodiment may include a blower device (200). The blower device (200) may force air to flow inside a tub (12).

The blower (200) may include a third blower fan (210). The third blower fan (210) may generate blowing force as it rotates. For example, the third blower fan (210) may generate suction force so that air inside the tub (12) is drawn into the blower device (200). For example, the third blower fan (210) may generate discharge force so that air drawn into the blower device (200) is discharged into the tub (12). The third blower fan (210) may be referred to as a third fan (210).

The blower device (200) may include a blower duct (220). The blower duct (220) may be provided to guide air blown by the third blower fan (210).

For example, the blower duct (220) may be formed by a first case (220a) and a second case (220b). The first case (220a) and the second case (220b) may be detachably coupled. However, the present invention is not limited thereto, and the blower duct (220) may be formed by a single case. For example, the first case (220a) and the second case (220b) may be provided integrally.

The blower duct (220) can form a path to guide air. For example, the blower duct (220) can form a third path (221) to guide air blown by the third blower fan (210) toward the opening (12a).

The air flowing on the third flow path (221) can be discharged into the tub (12). For example, the air flowing on the third flow path (221) can be arranged to form a circulating flow of air inside the tub (12). For example, as the first case (220a) and the second case (220b) are combined, the flow path forming part (2211) of the first case (220a) and the flow path forming part (2212) of the second case (220b) can form the third flow path (221).

The blower duct (220) may include a partition (223). The partition (223) may be provided to separate the third passage (221) of the blower duct (220) and the second passage (122) of the blower duct (220). The partition (223) may prevent air flowing on the third passage (221) and air flowing on the second passage (122) from mixing with each other.

For example, the partition (223) may be formed in at least one of the first case (220a) or the second case (220b). For example, the first case (220a) may include a first partition portion (2231) protruding toward the second case (220b). For example, the second case (220b) may include a second partition portion (2232) protruding toward the first case (220a). For example, when the first case (220a) and the second case (220b) are combined, the first partition portion (2231) and the second partition portion (2232) may form the partition (223).

The blower duct (220) may include a fan mounting portion (224). A third blower fan (210) may be mounted to the fan mounting portion (224). The third blower fan (210) may be detachably coupled to the fan mounting portion (224).

The fan mounting portion (224) may be located upstream of the third flow path (221) based on the air flow direction. The fan mounting portion (224) may be located upstream of the second flow path (122) based on the air flow direction.

The blower duct (220) may include a first communication portion (2251). The first communication portion (2251) may be provided to communicate with the inside of the tub (12). The first communication portion (2251) may be an intake port of the blower duct (220). For example, the first communication portion (2251) may be formed in the first case (220a). Air inside the tub (12) may be introduced into the blower duct (220) through the first communication portion (2251).

The first connecting portion (2251) may be located upstream of the third flow path (221) based on the direction of air flow.

The first communication portion (2251) may be provided to correspond to the suction cap (230). For example, the first communication portion (2251) may be provided to face the suction cap (230).

The blower duct (220) may include a second communication portion (2252). The second communication portion (2252) may be provided to communicate with the inside of the tub (12). The second communication portion (2252) may be an outlet of the blower duct (220). For example, the second communication portion (2252) may be formed in the first case (220a). Air inside the blower duct (220) may be introduced into the inside of the tub (12) through the second communication portion (2252).

The second communication portion (2252) may be provided to correspond to the discharge cap (241). For example, the second communication portion (2252) may be provided to face the discharge cap (241). For example, the second communication portion (2252) may be formed in the first case (220a).

The blower duct (220) may include a third communication portion (2253). The third communication portion (2253) may be provided to communicate with the inside of the tub (12). The third communication portion (2253) may be an outlet of the blower duct (220). For example, the third communication portion (2253) may be formed in the first case (220a). Air inside the blower duct (220) may be introduced into the inside of the tub (12) through the third communication portion (2253). The third communication portion (2253) may be provided below the second communication portion (2252).

The second connecting portion (2252) and the third connecting portion (2253) may be located on the downstream side of the third flow path (221) based on the direction of air flow.

The blower duct (220) may include a first cap coupling portion (2261). A suction cap (230) may be detachably mounted on the first cap coupling portion (2261). For example, the first cap coupling portion (2261) may be formed around the first communication portion (2251). For example, the first cap coupling portion (2261) may be provided in multiple numbers. For example, a plurality of first cap coupling portions (2261) may be arranged spaced apart from each other along the periphery of the first communication portion (2251).

The blower duct (220) may include a second cap coupling portion (2262). A discharge cap (241) may be detachably mounted on the second cap coupling portion (2262). For example, the second cap coupling portion (2262) may be formed around the second communication portion (2252). For example, the second cap coupling portion (2262) may be provided in multiple numbers. For example, a plurality of second cap coupling portions (2262) may be spaced apart and arranged along the periphery of the second communication portion (2252).

The blower duct (220) may include a third cap coupling portion (2263). The discharge cap (242) may be detachably mounted on the third cap coupling portion (2263). For example, the third cap coupling portion (2263) may be formed around the third communication portion (2253). For example, the third cap coupling portion (2263) may be provided in multiple numbers. For example, a plurality of third cap coupling portions (2263) may be spaced apart and arranged along the periphery of the third communication portion (2253).

The blower duct (220) may include a curved portion (227). The curved portion (227) may guide water flowing into the blower duct (220) to the tub (12). The water guided through the curved portion (227) may be discharged into the tub (12). For example, water contained in air flowing through the blower duct (220) and/or washing water that has penetrated into the blower duct (220) during a washing process (or a rinsing process) may naturally flow into the tub (12) by the curved portion (227). As a result, contamination caused by water remaining in the blower duct (220) may be prevented.

For example, the curved portion (227) may have a shape that slopes downward toward the inside of the tub (12). For example, the curved portion (227) may have a curved shape. For example, the curved portion (227) may be formed at the lower end of the blower duct (220).

As the first case (220a) and the second case (220b) are combined, the flow path forming part (1281) of the first case (220a) and the flow path forming part (1282) of the second case (220b) can form a third flow path (221). The flow path forming part (1281) of the first case (220a) can have a shape that extends approximately in the vertical direction. The flow path forming part (1282) of the second case (220b) can have a shape that extends approximately in the vertical direction.

The blower (200) may include a suction cap (230). The body (231), the protrusion (232), the suction guide rib (233), the duct joint (234), and the discharge hole (235) of the suction cap (230) may substantially correspond to the body (181), the protrusion (182), the suction guide rib (183), the duct joint (184), and the discharge hole (185) of the second communication port cap (180).

The blower device (200) may include a discharge cap (240). The discharge cap (240) may be provided to communicate the blower duct (220) with the interior of the tub (12). The discharge cap (240) may be detachably mounted on the inner wall of the first side (12b) of the tub (12).

The discharge cap (240) can discharge air guided by the blower duct (220) into the tub (12). The discharge cap (240) can form a discharge port.

For example, the discharge cap (240) may include a plurality of discharge caps (240). The plurality of discharge caps (240) may include an upper discharge cap (241) and a lower discharge cap (242). The upper discharge cap (241) may be in communication with the second communication portion (2252), and the lower discharge cap (242) may be in communication with the third communication portion (2253). The discharge guide ribs (2411, 2421) and the duct coupling portions (2412, 2422) of the plurality of discharge caps (240) may substantially correspond to the discharge guide ribs (191) and the duct coupling portions (192) of the first communication port cap (190).

The blower device (200) may include a first sealing member (271). The first sealing member (271) may be provided to prevent air flowing into the blower duct (220) from leaking between the blower duct (220) and the tub (12). The first sealing member (271) may be arranged to correspond to the suction cap (230) to seal between the blower duct (220) and the tub (12).

The blower device (200) may include a second sealing member (272). The second sealing member (272) may be provided to prevent air flowing out of the blower duct (220) from flowing out between the blower duct (220) and the tub (12). The second sealing member (272) may be arranged to correspond to the discharge cap (241) to seal between the blower duct (220) and the tub (12).

The blower device (200) may include a third sealing member (273). The third sealing member (273) may be provided to prevent air flowing out of the blower duct (220) from flowing out between the blower duct (220) and the tub (12). The third sealing member (273) may be arranged to correspond to the discharge cap (242) to seal between the blower duct (220) and the tub (12).

According to one embodiment, the blower device can disperse low-humidity air throughout the interior of the tub (12) by the drying device (100), thereby removing moisture from dishes located inside the tub (12) and more quickly lowering the humidity inside the tub (12).

Fig. 13 is a perspective view of a dishwasher according to one embodiment. Fig. 14 is a perspective view of a dishwasher according to one embodiment.

Referring to FIGS. 13 and 14, the dishwasher (1) may include a drying device (100). The drying device (100) may be arranged to operate during a rinsing cycle and/or a drying cycle. The drying device (100) may be arranged to remove moisture inside the tub (12). For example, the drying device (100) may remove moisture remaining on dishes or reduce humidity inside the tub (12). The drying device (100) may be a dehumidifying device (100).

The drying device (100) can operate during the rinsing cycle and/or the drying cycle.

For example, based on whether it is a rinsing cycle and/or a drying cycle, at least one of the first blower fan (160) and the second blower fan can be operated. Based on whether one of the first blower fan (160) and the second blower fan (170) is operated, the air inside the tub (12) can flow through the suction caps (180a, 180b) and the suction port into the duct.

For example, the air flowing through the first duct (110) and the air flowing through the second duct (120) can each flow through different paths.

For example, based on the operation of the first blower fan (160), air inside the tub (12) can flow into the interior of the first duct (110) through the first suction cap (180a) and the first suction port (115). Since a heating unit (131) is arranged inside the first duct (110) (e.g., the first flow path (110a)), the temperature of air flowing into the first duct (110) can rise as it passes through the heating unit (131). The air with the risen temperature can flow into the interior of the tub (12) through the first discharge port (112) and the first discharge cap (190a).

In addition, for example, based on the operation of the second blower fan (170), the air inside the tub (12) can flow into the interior of the second duct (120) through the second suction cap (180b) and the second suction port (122). Since a cooling unit (132) is arranged inside the second duct (120) (e.g., the second flow path (120a)), the air introduced into the second duct (120) can have its temperature lowered and be dehumidified as it passes through the cooling unit (132). The air that has been lowered in temperature and dehumidified can flow into the interior of the tub (12) through the second discharge port (125) and the second discharge cap (190b). Air that passes through the heating unit (131) and is heated and then flows into the tub (12) may generate condensation on the inner wall of the tub (12), and the absolute humidity inside the tub (12) may decrease. The condensation inside the tub (12) may flow downward toward the lower surface (12d) of the tub (12) and the sump assembly (70).

Condensate generated as air passes through the cooling unit (132) can be discharged through the wall of the second duct (120) into the tub (12) or discharged to the outside of the second duct (120).

Accordingly, the dishwasher according to one embodiment can control the humidity inside the tub (12) by circulating the air inside the tub (12), the first duct (110), and the second duct (120) without taking in or exhausting the outside air, while simultaneously heating the air and removing moisture with a thermoelectric device (130). Accordingly, the energy efficiency of the dishwasher can be increased.

FIG. 15 is a perspective view of a drying device of a dishwasher according to one embodiment. FIG. 16 is a perspective view of a drying device of a dishwasher according to one embodiment. FIG. 17 is an exploded perspective view of a drying device of a dishwasher according to one embodiment. FIG. 18 is an exploded perspective view of a drying device of a dishwasher according to one embodiment.

Referring to FIGS. 15 to 18, the drying device (100) may include a first duct (110) and a second duct (120).

The first duct (110) may include a first duct section (110b), a second duct section (110c), a fan mounting section (110d), and a cap coupling section (110e). The fan mounting section (110d) may be coupled to the first duct (110) at the upper portion of the first duct (110). The cap coupling section (110e) of the first duct (110) may be provided in multiple numbers. The multiple cap coupling sections (110e) may be provided at the upper and lower portions of the first duct (110).

The second duct (120) may include a first duct section (120b), a second duct section (120c), a fan mounting section (120d), and a cap coupling section (120e). The fan mounting section (120d) may be coupled to the second duct (120) at the upper portion of the second duct (120). The cap coupling sections (120e) of the second duct (120) may be provided in multiple numbers. The multiple cap coupling sections (120e) may be provided at the upper and lower portions of the second duct (120).

The drying device (100) may include a first discharge port (112) and a first suction port (115). The first discharge port (112) and the first suction port (115) may be formed in the first duct (110). For example, the first discharge port (112) may be formed in the lower portion of the first duct (110), and the first suction port (115) may be formed in the upper portion of the first duct (110). Accordingly, air introduced into the interior of the first duct (110) from the upper portion of the first duct (110) may pass through the heating unit (131) disposed below the first suction port (115) and be discharged into the interior of the tub (12) through the first discharge port (112) from the lower portion of the first duct (110). The first intake port (115) and the first outlet port (112) may be included in the first path (110a). The first outlet port (112) may be a first communication port (112).

The drying device (100) may include a first suction cap (180a) and a first discharge cap (190a). The first suction cap (180a) may cover the first suction port (115). The first discharge cap (190a) may cover the first discharge port (112). The first suction cap (180a) may be coupled with the first duct (110) at an upper portion of the first duct (110), and the first discharge cap (190a) may be coupled with the first duct (110) at a lower portion of the first duct (110).

The drying device (100) may include a second discharge port (125) and a second suction port (122). The second discharge port (125) and the second suction port (122) may be formed in the second duct (120). For example, the second discharge port (125) may be formed in the lower portion of the second duct (120), and the second suction port (122) may be formed in the upper portion of the second duct (120). Accordingly, air introduced into the interior of the second duct (120) from the upper portion of the second duct (120) may pass through the cooling unit (132) disposed below the second suction port (122) and be discharged into the interior of the tub (12) through the second discharge port (125) from the lower portion of the second duct (120). The second intake port (122) and the second exhaust port (125) may be included in the first path (110a).

The drying device (100) may include a second suction cap (180b) and a second discharge cap (190b). The second suction cap (180b) may cover the second suction port (122). The second discharge cap (190b) may cover the second discharge port (125). The second suction cap (180b) may be coupled with the second duct (120) at an upper portion of the second duct (120), and the second discharge cap (190b) may be coupled with the second duct (120) at a lower portion of the second duct (120).

One side of the second discharge cap (190b) is connected to the lower part of the second duct (120), and the other side of the second discharge cap (190b) is open so that air discharged from the second duct (120) can flow to the rear of the inside of the tub (12).

The drying device (100) may include a first blower fan (160) and a second blower fan (170). The first blower fan (160) may be placed on the upper portion of the first duct (110). The second blower fan (170) may be placed on the upper portion of the second duct (120). The first blower fan (160) may be placed on the side of the first suction port (115). The second blower fan (170) may be placed on the side of the second suction port (122).

The drying device (100) may include a first sealing member (151) and a second sealing member (152). The first sealing member (151) may be arranged between the tub (12) and the first duct (110) to prevent air flowing from the tub (12) to the first duct (110) from leaking out. The second sealing member (152) may be arranged between the tub (12) and the second duct (120) to prevent air flowing from the tub (12) to the second duct (120) from leaking out. The first sealing member (151) may be arranged on the upper side of the first duct (110), and the second sealing member (152) may be arranged on the upper side of the second duct (120).

The drying device (100) may include a third sealing member and a fourth sealing member. The third sealing member may be arranged between the tub (12) and the first duct (110) to prevent air flowing from the first duct (110) to the tub (12) from leaking out. The fourth sealing member may be arranged between the tub (12) and the second duct (120) to prevent air flowing from the second duct (120) to the tub (12) from leaking out.

The drying device (100) may include a thermoelectric device (130).

The thermoelectric device (130) may include a heating unit (131) and a cooling unit (132). The heating unit (131) may heat air that flows from the inside of the tub (12), flows through the inside of the first duct (110), and then flows back into the tub (12). The cooling unit (132) may cool and dehumidify air that flows from the inside of the tub (12), flows through the inside of the second duct (120), and then flows back into the tub (12).

The thermoelectric device (130) may include a thermoelectric module (133). The thermoelectric module (133) may heat the heating unit (131) and cool the cooling unit (132). The thermoelectric module (133) may be placed between the heating unit (131) and the cooling unit (132). Although only one thermoelectric module (133) is illustrated in the drawing, a plurality of thermoelectric modules (133) may be provided.

The heating member (131) may include a heating member. The heating member may include a heating pipe (131b). The heating pipe (131b) may be arranged inside the heating plate (131a) or may be combined with the heating plate (131a). The heating pipe (131b) may extend in one direction. For example, the heating pipe (131b) may extend in a direction in which the first duct (110) and the second duct (120) are arranged. The heating pipe (131b) may extend from the thermoelectric module (133) toward the inside of the first duct (110). For example, the heating pipe (131b) may extend along the front-back direction. The heating pipe (131b) may extend perpendicularly to the heating fin (131c). A refrigerant may be arranged inside the heating pipe (131b) to transfer heat from the thermoelectric module (133) to the heating fin (131c). Heating pipes (131b) may be provided in multiples.

The cooling unit (132) may include a cooling member. The cooling member may include a cooling pipe (132b). The cooling pipe (132b) may be arranged inside the cooling plate (132a) or may be combined with the cooling plate (132a). The cooling pipe (132b) may extend in one direction. For example, the cooling pipe (132b) may extend in a direction in which the first duct (110) and the second duct (120) are arranged. The cooling pipe (132b) may extend from the thermoelectric module (133) toward the inside of the second duct (120). For example, the cooling pipe (132b) may extend along the forward-backward direction. The cooling pipe (132b) may extend perpendicularly to the cooling fin (132c). A refrigerant may be arranged inside the cooling pipe (132b) to transfer heat from the thermoelectric module (133) to the cooling fin (132c). Cooling pipes (132b) may be provided in multiples.

In one embodiment, the filter (150) may be omitted since outside air is not drawn into or drawn out of the tub.

According to one embodiment, a dishwasher may include a tub (12) forming a washing room (C), a first duct (110) positioned on a first side of the tub along a first direction (Y) and having a first communication port (112) formed therein through which air flows into the inside of the tub, a second duct (120) positioned on the first side of the tub along the first direction in a second direction (-X) different from the first direction and having a second communication port (122) formed therein through which air flows from the inside of the tub, a heating unit (131) positioned on the first side of the tub along the first direction and disposed within the first duct, and a cooling unit (132) disposed within the second duct in the second direction with respect to the heating unit.

The thermoelectric device may further include a thermoelectric module (133) configured to heat the heating unit and cool the cooling unit, the heating unit may include a heating member (131a, 131b) that is in contact with the thermoelectric module and extends into the first duct, and the cooling unit may include a cooling member (132a, 132b) that is in contact with the thermoelectric module and extends into the second duct.

The above thermoelectric module can be arranged between the first duct and the second duct and extend in the second direction.

It may further include an inlet (111) formed at the lower part of the first duct so that outside air is supplied to the first communication port, and an outlet (121) formed at the lower part of the second duct so that air is discharged to the outside from the second communication port.

Air drawn into the first duct through the inlet can pass through the heating unit and flow into the first communication port, air flowing into the first communication port can flow into the tub, air inside the tub can flow into the second communication port and flow into the second duct, and air flowing into the second duct can flow into the outlet through the cooling unit.

The above first communication port may be provided above the inlet and the outlet, and below the second communication port.

It may further include a third duct (140) connected to the first duct at the lower portion of the first duct so that outside air is introduced through the inlet, and a filter (150) placed within the third duct.

The second duct may further include a drain (123) formed at the bottom to discharge condensed water from the cooling unit.

The second duct may further include a drain guide (124) that is inclined downward toward the drain port to guide water condensed in the cooling unit to the drain port.

It may further include a first blower fan (160) placed in the above inlet and a second blower fan (170) placed in the second communication port.

The first communication port (112) is a first discharge port (112), the second communication port (122) is a second intake port (122), and includes a first intake port (115) formed in the first duct to suck in air inside the tub, and a second exhaust port (125) formed in the third duct to discharge air into the tub, and air introduced into the first duct through the first intake port can pass through the heating unit and be introduced back into the tub through the first exhaust port, and air introduced into the second duct through the second intake port can pass through the cooling unit and be introduced back into the tub through the second exhaust port.

It may further include a first blower fan (160) positioned in the first suction port and a second blower fan (170) positioned in the second suction port.

The first suction port may be provided above the first discharge port, and the second suction port may be provided above the second discharge port.

It may further include a blower device (200) arranged on the second side of the above tub.

The above blower device may include a blower duct (220), a third blower fan (210) that flows air into the blower duct, a blower inlet (2251) provided at the rear of the blower duct, and a blower outlet (2252, 2253) provided at the front of the blower duct.

A dishwasher according to one embodiment may include a tub (12) forming a washing room (C), a first duct (110) coupled with the tub at a first side thereof and having a first communication port (112) formed therein through which air flows into the tub, a second duct (120) coupled with the tub at the first side thereof and having a second communication port (122) formed therein through which air flows from the inside of the tub, and a thermoelectric device (130) disposed at the first side of the tub and including a heating unit (131) disposed within the first duct, and a cooling unit (132) disposed within the second duct.

The thermoelectric device may further include a thermoelectric module (133) configured to heat the heating unit and cool the cooling unit, the heating unit may include a heating member (131a, 131b) that is in contact with the thermoelectric module and extends into the first duct, and the cooling unit may include a cooling member (132a, 132b) that is in contact with the thermoelectric module and extends into the second duct.

The first duct and the second duct are arranged on the first side along the first direction of the tub, the first duct and the second duct are arranged in the second direction different from the first direction, and the thermoelectric module can be arranged between the first duct and the second duct and extend in the second direction.

According to one embodiment, a dishwasher comprises a tub (12) forming a washing room (C), a first duct (110) formed on a side wall of the tub and having an inlet (111), a first communication port (112) connected to the inlet so that air can flow into the inside of the tub, a second communication port (122) formed on a side wall of the tub and having an outlet (121) formed in the second duct so that air can be discharged to the outside from the second communication port, and a thermoelectric device (130) formed on a side wall (12b, 12c) of the tub and having a heating unit (131) disposed in the first duct, and a cooling unit (132) disposed in the second duct, wherein air introduced into the first duct through the inlet passes through the heating unit and passes through the first communication port. The air flowing through the first communication port can flow into the tub, the air flowing into the tub can flow into the second communication port, the air flowing through the second communication port can flow into the second duct, and the air flowing into the second duct can pass through the cooling unit and flow into the outlet.

The first duct and the second duct are arranged on the first side along the first direction of the tub, the first duct and the second duct are arranged in the second direction different from the first direction, and the thermoelectric module can be arranged between the first duct and the second duct and extend in the second direction.

The above has been illustrated and described with respect to specific embodiments. However, it is not limited to the above embodiments, and those skilled in the art to which the disclosure pertains can make various modifications and implementations without departing from the gist of the technical idea of the disclosure described in the claims below.

Claims (15)

A tub forming a washroom; A first duct located on a first side of the tub in the first direction and having a first communication port formed through which air flows into the inside of the tub; A second duct formed in a second direction different from the first direction and positioned on the first side of the tub according to the first direction, and a second communication port through which air flows from inside the tub; and A dishwasher comprising a thermoelectric device including a heating unit positioned on a first side of the tub along the first direction and arranged within the first duct, and a cooling unit arranged within the second duct and the heating unit in the second direction. In the first paragraph, The above thermoelectric device, Further comprising a thermoelectric module configured to heat the heating unit and cool the cooling unit; The heating unit includes a heating member that is in contact with the thermoelectric module and extends into the interior of the first duct; A dishwasher including a cooling member, wherein the cooling member is in contact with the thermoelectric module and extends into the interior of the second duct. In the second paragraph, A dishwasher in which the thermoelectric module is disposed between the first duct and the second duct and extends in the second direction. In the third paragraph, An inlet formed at the lower part of the first duct so that outside air is supplied to the first communication port; and A dishwasher further comprising an outlet formed at the lower portion of the second duct to discharge air to the outside from the second communication port. In paragraph 4, A dishwasher in which air drawn into the first duct through the inlet passes through the heating unit and flows into the first ventilation port, air flowing into the first ventilation port flows into the inside of the tub, air inside the tub flows into the second ventilation port and flows into the second duct, and air flowing into the second duct passes through the cooling unit and flows into the outlet. In paragraph 5, A dishwasher in which the first communication port is provided above the inlet and the outlet, and below the second communication port. In Article 6, A third duct connected to the first duct at the bottom of the first duct so that outside air can be introduced through the inlet; and A dishwasher further comprising a filter disposed within the third duct. In Article 7, A dishwasher further comprising a drain formed at the bottom of the second duct to discharge condensed water from the cooling unit. In Article 8, A dishwasher further comprising a drain guide provided in the second duct and slanted downward toward the drain to guide water condensed in the cooling unit to the drain. In Article 9, a first blower fan disposed in the above inlet; and A dishwasher further comprising a second blower fan disposed in the second ventilation hole. In the third paragraph, The above first communication port is a first discharge port, and the above second communication port is a second intake port. A first suction port formed in the first duct to suck in air inside the tub; and Including a second discharge port formed in the third duct to discharge air into the inside of the tub; The air that is introduced into the first duct through the first intake port passes through the heating unit and is introduced back into the tub through the first exhaust port. A dishwasher in which air drawn into the second duct through the second intake port passes through the cooling unit and is drawn back into the tub through the second outlet. In Article 11, A first blower fan disposed in the first suction port; and A dishwasher further comprising a second blower fan disposed in the second suction port. In Article 12, The above first intake port is provided above the above first exhaust port, A dishwasher wherein the second suction port is provided above the second discharge port. In clause 4 or clause 11, A dishwasher further comprising a blower device arranged on the second side of the tub. In Article 14, The above blower device, ventilation duct; A third blower fan for flowing air into the blower duct; A ventilation inlet provided at the rear end of the above ventilation duct; and A dishwasher including an air outlet provided in front of the above air duct.

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